44. NEPHRODIUM, LASTREA. 265 



rachises slightly fibrillose, and both sides densely pubescent and glandular ; 

 veinlets 8-10 on a side ; sort large, submarginal. Hk. Sp. 4. p. 102. 



Hab. Mexico to Brazil and Peru. 



32. N. (Last.) vestitum, Baker ; sL 6-12 in. 1., stout, densely coated with 

 woolly lanceolate scales ; fr. 1-2 ft. 1., 6-10 in. br. ; pinnae 3-5 in. 1., |-1 in. br.;- 

 cut down to a narrowly-winged rachis into blunt, entire, falcate lobes 2 lin. br. ; 

 texture herbaceous ; rachis of the pinnae densely clothed with broad furfuraceous 

 scales ; veinlets 6-8 on a side, the sori close to the midrib. Polyp. Raddi. 

 N. Raddiammi, Hk. Sp. 4.^,98. t. 245. 



Hab. S. Brazil. The Mauritian A. nitidum, Bory, is like this, except" that the scales 

 are narrower and finer, and with this a Brazilian plant, marked "A. sguamigerum" by 

 Mettenius, agrees. 



33. N. (Last.) crinitum, Desv. ; st. 6-12 in. 1., stout, densely clothed with 

 long-, purplish-brown, fibrillose scales ;/r. 12-24 in. 1., 8-12 in. br., ovate-deltoid ; 

 pinnae 4-6 in. 1., 1 in. br., cut down nearly to the rachis into slightly falcate, 

 linear-oblong lobes 2 lin. br. ; lower pinnae deflexed ; texture herbaceous ; rachis 

 and midrib more or less fibrillose ; veinlets 9-1 2 on a side ; sori medial. Hk. Sp. 

 4. p. 111. (in part}. A. sulcatum, Klf. 



Hab. Mauritius and Bourbon. This and the two preceding resemble one another 

 closely in habit, texture, and shape of the lobes, and in all three the involucre is thin 

 and fugacious. In A. pauciflorum, Kaulf., the scales are fewer, aud not so distinctly 

 subulate, but they do not seem clearly separable. 



34. N. (Last.) Ctenitis, Baker ; st. more than 1 ft. 1., clothed throughout with 

 black and ferruginous scales ; fr. 2 ft. 1., 1 ft. or more br. ; pinnae 8-9 in. 1., 

 Ij-l^r in. br., cut down nearly to the rachis into obtusely-toothed lobes, the lower 

 ones "with a space between them, the lower pinnae stalked ; texture subcoriaceous ; 

 upper surface with scattered short ferruginous hairs, lower with dark scales on 

 the midrib ; veinlets about 15 on a side -^ sori near the main veins ; invol. per- 

 sistent, glabrous. Aspid. Kze* Mett. Asp. p. 91. 



Hab. Brazil. 



35. N. (Last.) vetteum, Baker ; st. 6 in. 1., densely clothed, especially at the 

 base, with long linear scales fr. 1^-2 ft. 1., 6-9 in. br. ; pinnae 3-4 in. 1., f-1 in. 

 br., cut down to the rachis into linear-oblong lobes 1^-2 lin. br. ; texture 

 herbaceous ; undsr side naked ; rachises densely clothed witli long, pale, bright- 

 brown fibrillose scales ; veinlets 7-8 on a side, the sori close to the midrib. 

 Aspid. Willd. N. aureo-vestitum, Hk. Sp. 4. p. 101. t. 246. 



Hab. West Indies. This most resembles the three preceding, but the frond is nar- 

 rower and more elongated, and the clothing of the rachis is quite peculiar. 



36. N. (Last.) Caripcnse, Hk. ; st. 1 ft. or more L, firm, clothed principally at 

 the base with long, dense, linear scales ; fr. 1^-2 ft. L, 8-12 in. br. ; pinnae 4-6 

 in. 1., 1 in. br., cut down to a broadly-winged rachis into close, blunt, entire 

 lobes .2 lin. br., the lower lobes reduced and lower pinnae slightly stalked; 

 texture firm ; rachis nearly and both sides quite naked ; veinlets 12-J5 on a side ; 

 sori medial ; invol. smaH, fugacious. Hk. Sp. 4. p. 99. N. Tarapotense, Hk. 

 Sp. 4. p. 107. 



Hab. Guatemala to Brazil and Peru. A. alsophilaceum of Kunze and Mettenius- is 

 said to differ by its more rigid texture, and lobes not reaching more than halfway down 

 to the midrib, with 9-10 veinlets on a side. 



37. N. (Last.) trichophoriiin, Baker; rhizome creeping; st. 6-9 in. 1., firm, 

 pubescent upwards; fr. 12-18 in. L, 8-9 in. br. ; pinnas 4-5 in. L, -f~ in. br., 



2 L 



